What we use to purify water depends a lot on where the water’s coming from and what we want to do with it. If we’re going to drink water it needs to be very clean and very safe. There are lots of regulations that we have to meet.
Archives: Blue Sky
Why is Pluto considered a dwarf planet?
The International Astronomical Union decided that full-sized planets must orbit the sun, have a round shape, and have cleared their orbits of other objects. Pluto fulfills the first two criteria, but not the third.
How does autopilot work?
An autopilot is a flight control system that allows a pilot to fly an airplane without continuous hands-on control of the airplane. It allows the pilot to focus on higher-order tasks such as navigating, communicating with air traffic control, planning for weather contingencies and rerouting associated with any kind of emergency circumstance.
How are video games used in research?
Video games are used in about five different ways.
How can we use stem cells to build tissues and organs?
There are two major properties of a stem cell, and the first one is its potency. By that we mean its ability to give rise to specialized cells.